Enquire within upon everything

Age. Proportion. Proportionate Dose. 7 weeks one-fifteenth or grains 4 7 months one-twelfth or grains 5 Under 2 years one-eighth or grains 7-1/2 " 3 " one-sixth or grains 10 " 4 " one-fourth or grains 15 " 7 " one-third or scruple 1 " 14 " one-half or drachm 1/2 " 20 " two-fifths or scruples 2 Above21 " the full dose or drachm 1 " 65 " The inverse gradation 689. Drugs, with their Properties and Doses. The various drugs have been arranged according to their properties, and the doses of each have been given. Many, however, have been necessarily omitted from each class, because they cannot be employed except by a medical man. The doses are meant for adults. 690. Classes of Drugs. Medicines have been divided into four grand classes 1. General stimulants; 2. Local stimulants; 3. Chemical remedies; 4. Mechanical remedies. 691. General Stimulants. General stimulants are subdivided into two classes, diffusible and permanent stimulants: the first comprising narcotics and antispasmodics, and the second tonics and astringents. 692. Narcotics. Narcotics are medicines which stupefy and diminish the activity of the nervous system. Given in small doses, they generally act as stimulants, but an increased dose produces a sedative effect. Under this head are included alcohol, camphor, ether, the hop, and opium. 693. Alcohol. Alcohol, or rectified spirit, is a very powerful stimulant, and is never used as a remedy without being diluted to the degree called proof spirit; and even then it is seldom used internally. It is used externally in restraining bleeding, when there is not any vessel of importance wounded. It is also used as a lotion to burns, and is applied by dipping a piece of lint into the spirit, and laying it over the part. Freely diluted (one part to eighteen) with water, it forms a useful eye-wash in the last stage of ophthalmia.